EP4170634A1 - Dispositif d'affichage pliable - Google Patents

Dispositif d'affichage pliable Download PDF

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Publication number
EP4170634A1
EP4170634A1 EP20880329.6A EP20880329A EP4170634A1 EP 4170634 A1 EP4170634 A1 EP 4170634A1 EP 20880329 A EP20880329 A EP 20880329A EP 4170634 A1 EP4170634 A1 EP 4170634A1
Authority
EP
European Patent Office
Prior art keywords
rear housing
display device
foldable display
support plate
gear shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20880329.6A
Other languages
German (de)
English (en)
Inventor
Zikang FENG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010573541.9A external-priority patent/CN111739417B/zh
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Publication of EP4170634A1 publication Critical patent/EP4170634A1/fr
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0004—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings

Definitions

  • the present application relates to the field of display technologies, and specifically to a foldable display device.
  • flexible display screens have advantages of light weight-ness and thinness, durability, bendability, foldability, and wearability, they can be used in bendable and deformable electronic products, such as smart watches, smart phones, car displays, and smart display terminals.
  • a folding method is divided into inner folding and outer folding.
  • a size of an inner surface is reduced after the devices are bent, resulting in a size mismatch of the flexible display screens.
  • a special structure is provided to accommodate an "excess" region of the flexible display screens formed after folding, but the special structure occupies too much space, so that there is insufficient space place a system motherboard, a battery, and other components.
  • the present application provides a foldable display device, which can provide enough space to accommodate an "excess" region of a flexible display screen formed by bending when folded, without taking up too much internal space of an entire machine, and it can make storage space for components such as system boards and batteries.
  • the present invention provides a foldable display device including:
  • a vertical distance from a side of the second support plate away from the bending region to the second rear housing is greater than a vertical distance from a side of the second support plate near the bending region to the second rear housing.
  • a connecting end of the connection member is provided with a first gear shaft part and a second gear shaft part
  • a connecting end of the first rear housing is provided with a first gear part
  • a connecting end of the second rear housing is provided with a second gear part
  • the first gear shaft part is penetrated in the first gear part
  • the second gear shaft part is penetrated in the second gear part
  • the first gear shaft part includes a first branch shaft of the first gear shaft part and a second branch shaft of the first gear shaft part respectively provided at two corresponding connecting ends of the connection member
  • the second gear shaft part includes a first branch shaft of the second gear shaft part and a second branch shaft of the second gear shaft part respectively provided at two corresponding connecting ends of the connection member
  • the first gear part and the second gear part are engaged with each other.
  • a first support platform is further provided inside the first housing, and a support height of the first support platform is same as a support height of the slider members.
  • two of the first support platforms are provided inside the first housing, and are respectively disposed on corresponding two sides of the first housing.
  • a side surface of the second gear shaft part is further provided with at least one second support platform, a cross-sectional shape of the at least one second support platform is rectangle, and when the foldable display device is in a fully unfolded state, a long side of the rectangle is perpendicular to the second support plate.
  • the second gear shaft part protrudes from an inner sidewall of the second housing, and the at least one second support platform is provided on a side surface of a protruding portion of the second gear shaft part.
  • the side surface of the second gear shaft part is further provided with two of the at least one second support platforms disposed on a side surface of the first branch shaft of the second gear shaft part and a side surface of the second branch shaft of the second gear shaft part, respectively.
  • a side surface of the first gear shaft part is further provided with the at least one second support platform.
  • a support height of the at least one second support platform is same as a support height of the slider members.
  • the second support plate is in contact with the at least one second support platform during folding the foldable display device, and rotates from being parallel to the second rear housing to be inclined related to the second rear housing under a support of the at least one second support platform.
  • the slider members include a spring, the first support plate and the second support plate slide in a direction away from the bending region under a pushing action of the spring during folding the foldable display device.
  • the foldable display device further including a battery, a system board, and a camera assembly, wherein the battery and the system board are disposed in the first housing and are positioned on a side of the first support plate away from the flexible display screen, the camera assembly is disposed in the second housing and is positioned on a side of the second support plate away from the flexible display screen.
  • first front frame and the second front frame are bolted connected or snap-connected to the first rear housing and the second rear housing, respectively.
  • the flexible display screen is a flexible organic light-emitting diode (OLED) display panel.
  • OLED organic light-emitting diode
  • the present invention provides a foldable display device.
  • a non-bending region of a flexible display screen exhibits a certain inclination angle with respect to a housing of the display device, to make an "excess" region of the flexible display screen after folding can be accommodated inside the device, forming a shape similar to a water drop, while another non-bending region is kept parallel to the housing of the display device to provide a larger space to accommodate a larger volume components such as system boards and batteries.
  • any technical or scientific term used herein shall have the common meaning understood by a person of ordinary skills. Such words as “first” and “second” used in the specification and claims are merely used to differentiate different components rather than to represent any order, number or importance. In the description of the present invention, the meaning of “plurality” is two or more unless specifically defined otherwise.
  • the term "exemplary” is used to mean “used as an example, illustration, or illustration.” Any embodiment described in the present application as “exemplary” is not necessarily to be construed as being more preferred or advantageous than other embodiments.
  • the following description is given. In the following description, details are listed for explanatory purposes. It should be understood that those of ordinary skill in the art may recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and procedures will not be elaborated in detail in order to avoid unnecessary details that obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the illustrated embodiments, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.
  • FIG. 1 is an exploded structural schematic view of the foldable display device provided by an embodiment of the present invention
  • FIG. 2 is a top-down structural schematic view of the foldable display device provided by the embodiment of the present invention
  • FIG. 3 is a cross-sectional structural schematic view of the foldable display device in an unfolded state provided by the embodiment of the present invention
  • FIG. 4 is a cross-sectional structural schematic view of the foldable display device in a folded state provided by an embodiment of the present invention, and the details are described below.
  • the foldable display device includes the followings.
  • a bottom housing assembly 100 including:
  • a support plate 200 includes a first support plate 21 and a second support plate 22, wherein the first support plate 21 is disposed inside the first rear housing 11 and fixedly connected to the corresponding slider members 14, and the second support plate 22 is disposed inside the second rear housing 12 and fixedly connected to the corresponding slider members 14. During a folding process, the first support plate 21 and the second support plate 22 slide relative to each other under an action of the slider members 14.
  • a flexible display screen 300 includes a first non-bending region 31, a bending region 33, and a second non-bending region 32.
  • the first non-bending region 31 and the second non-bending region 32 are respectively attached and connected to the first support plate 21 and the second support plate 22 under a support of the support plate, preventing the flexible display screen from wrinkling due to its excessive softness.
  • a front frame 400 is connected to the first rear housing 11 and the second rear housing 12, and the front frame includes an opening to expose the flexible display screen 300.
  • the front frame 400 is a split structure, including a first front frame 41 and a second front frame 42, the first front frame 41 being connected to a side of the first rear housing 11, and the second front frame 42 being connected to a side the first rear housing 12.
  • the first front frame 41 and the second front frame 42 are respectively connected to the first rear housing 11 and the second rear housing 12, and a connection method can be a bolt connection, a snap connection or other commonly used connection methods.
  • the first support plate 21 is parallel to the first rear housing 11
  • the second support plate 22 is parallel to the second rear housing 12.
  • the first support plate 21 When the foldable display device is in a folded state, the first support plate 21 is parallel to the first rear housing 11, where a space under the first support plate 21 in a parallel state is large and can accommodate other large-volume components required by the display device, and the second support plate 22 is in an inclined state relative to the second rear housing 12.
  • the second non-bending region 32 of the flexible display screen is also inclined with respect to the second rear housing 12. It can be understood that for a same space, an inclined state has a longer length than the parallel state, so that an "excess" region of the flexible display screen after folding can be accommodated inside the device.
  • the second support plate 22 is inclined relative to the second rear housing 12; specifically, a vertical distance from a side of the second support plate 22 away from the bending region 33 to the second rear housing 12 is greater than a vertical distance from a side of the second support plate 22 near the bending region 33 to the second rear housing 12.
  • a connecting end of the connection member 13 is provided with a first gear shaft part 131 and a second gear shaft part 132
  • a connecting end of the first rear housing 11 is provided with a first gear part 111
  • a connecting end of the second rear housing 12 is provided with a second gear part 121
  • the first gear shaft part 131 penetrates into the first gear part 111
  • the second gear shaft part 132 penetrates into the second gear part 121, thereby allowing the first rear housing 11 to pivot around the first gear shaft part 131 and the second rear housing 12 to pivot around the second gear shaft part 132.
  • the first gear shaft part 131 includes a first branch shaft of the first gear shaft part and a second branch shaft of the first gear shaft part that are respectively provided at two corresponding connecting ends of the connection member 13.
  • the second gear shaft part 132 includes a first branch shaft of the second gear shaft part and a second branch shaft of the second gear shaft part respectively provided at two corresponding connecting ends of the connection member 13.
  • first gear part and the second gear part are engaged with each other to realize linked rotation.
  • two first support platforms 15 are further provided inside the first housing 11, and are oppositely disposed on the inner sidewalls of the first housing 11, and a support height of the first support platforms 15 is same as a support height of the slider members 14, that is, regardless of the state of the foldable display device, the first support plate 21 and the first rear housing 11 are in the parallel state.
  • the second gear shaft part 132 protrudes from the inner sidewall of the second housing 12.
  • Two of the second support platforms 133 are provided on a side surface of each a protruding portion of the second gear shaft part 132, and are disposed on a side surface of the first branch shaft of the second gear shaft part and a side surface of the second branch shaft of the second gear shaft part, respectively.
  • a cross-sectional shape of the second support platform 133 is rectangular, and when the foldable display device is in a fully unfolded state, a long side of the rectangular shape is perpendicular to the second support plate 22.
  • a support height of the second support platforms 133 is the same as a support height of the slider members 14, and the second support plate 22 is in the parallel state relative to the second rear housing 12.
  • the second support plate 22 stays in contact with the second support platform 133.
  • a contact position between the second support plate 22 and the second support platform 133 changes.
  • the long side of the rectangle of the second support platform 133 is perpendicular to the second support plate 22, and as a folding angle becomes larger and larger, the long side of the rectangle begins to incline towards the second support plate 22 until the long side of the rectangle is parallel to the second support plate 22 when fully folded. That is, as the folding angle becomes larger, the support height of the second support platform 133 becomes smaller and smaller, so an inclination angle of the second support plate 22 relative to the second rear housing 12 becomes larger and larger; that is, an inclination angle of the second display panel relative to the second rear housing becomes larger and larger.
  • the cross-sectional shape of the second support platform is not limited to a rectangle.
  • the second support platform in the vertical direction is greater than a width thereof in the horizontal direction in the unfolded state, it is possible to make the support height of the second support platform gradually decrease during the folding process, so that the second support plate gradually rotates from being parallel to the second rear housing into an inclined state relative to the second rear housing.
  • a manner in which the second support plate tilts during rotation is not limited to the specifically-shaped above-mentioned support platform provided on the gear shaft part, other structures that can achieve this function can also be used.
  • a support platform provided below the second support platform that can be automatically raised and lowered, and is adjustable during the folding process so that the support platform is lifted to a required support height, is of course possible, other methods are also possible, and the present embodiment is not specific limited here.
  • the first gear shaft part 131 is also provided with the second support platform 133 as the foregoing manner, which serves as a further auxiliary support function.
  • the first support plate 21 is parallel to the first rear housing 11.
  • the slider members 14 include a spring. During the folding process of the foldable display device, the first support plate 21 and the second support plate 22 are slid in a direction away from the bending region under an urging action of the spring to provide a bending space for the bending region 33 of the flexible display screen 300.
  • the foldable display device further includes a battery 17, a system motherboard 16, and a camera assembly 18.
  • the battery 17 and the system motherboard 16 are disposed in the first housing 11 due to their larger volume, and are positioned on a side of the first support plate 21 away from the flexible display screen 300.
  • the camera assembly 17 is positioned in the second housing 12 due to its smaller volume, and is positioned on the side of the second support plate 22 away from the flexible display 300.
  • the flexible display screen is a flexible organic light-emitting diode (OLED) display panel.
  • OLED organic light-emitting diode
  • the above units or structures can be implemented as independent entities, or they can be combined in any combination as one or several entities.
  • the above units or structures please refer to the previous manner in the embodiments, which will not repeat here again.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
EP20880329.6A 2020-06-22 2020-07-22 Dispositif d'affichage pliable Pending EP4170634A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010573541.9A CN111739417B (zh) 2020-06-22 2020-06-22 可折叠显示装置
PCT/CN2020/103474 WO2021258477A1 (fr) 2020-06-22 2020-07-22 Dispositif d'affichage pliable

Publications (1)

Publication Number Publication Date
EP4170634A1 true EP4170634A1 (fr) 2023-04-26

Family

ID=85686383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20880329.6A Pending EP4170634A1 (fr) 2020-06-22 2020-07-22 Dispositif d'affichage pliable

Country Status (1)

Country Link
EP (1) EP4170634A1 (fr)

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